var createError = require('http-errors');
var express = require('express');
var path = require('path');
const fs = require('fs');
var cookieParser = require('cookie-parser'); //解析cookie  req.cookie
var logger = require('morgan'); //log
const session = require('express-session');
const redisConnect = require('connect-redis')(session);

// var indexRouter = require('./routes/index');
// var usersRouter = require('./routes/users');
var userRouter = require('./routes/user');
var blogRouter = require('./routes/blog');
const mysql = require('mysql');
var app = express();

//解决跨域-
app.all('*', function(req, res, next) {
	res.header("Access-Control-Allow-Origin", "*");
	res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
	next();
});

// view engine setup
// app.set('views', path.join(__dirname, 'views'));
// app.set('view engine', 'jade');

const env = process.env.NODE_ENV;
if (env == 'dev') {
	app.use(logger('dev')); // 线上环境用 combined
} else {
	// 线上环境用 combined
	const logfilename = path.join(__dirname, 'logs', 'access.log');
	const writeStream = fs.createWriteStream(logfilename, {
		flags: 'a'
	});
	app.use(logger('combined', {
		stream: writeStream
	}));
}




app.use(express.json());
app.use(express.urlencoded({
	extended: false
}));
app.use(cookieParser());

const redisCli = require('./db/redis.js'); // 引入创建好的客户端
const sessionStore = new redisConnect({
	client: redisCli
});
app.use(session({
	secret: "ASD_456#",
	cookie: {
		maxAge: 24 * 60 * 60 * 1000
	},
	store: sessionStore
}));

// app.use(express.static(path.join(__dirname, 'public')));

// app.use('/', indexRouter);
// app.use('/users', usersRouter);

app.use('/api/user', userRouter);
app.use('/api/blog', blogRouter);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
	next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
	// set locals, only providing error in development
	res.locals.message = err.message;
	res.locals.error = req.app.get('env') === 'development' ? err : {};

	// render the error page
	res.status(err.status || 500);
	res.render('error');
});

module.exports = app;
